通过串口接收读取DL645-1997的电表命令，模拟电表产生随机数据或固定数据，向串口发送-Read through the serial port to receive commands DL645-1997 meter, analog meter to generate random data or fixed data to the serial port

c++编写GPRS串口通信，实现了发送、接收，并有模拟窗口-c++ write GPRS serial communication to achieve a send, receive, and a simulation window

Vc6.0串口通信发送字符仿真接收功能齐全模拟发送-serail Com